Computer with error recovery



Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 15, 1961 112 Sheets-Sheet 1 Distributor transfer control OVERALL SYSTEM INVENTORS WILLIAM WEIGLER ATTORNEYS Aug. 9, 1966 A. w. CHENEY ET AL 3,256,020

v COMiUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 112 Sheets-Sheet z Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 R 112 Sheets-Sheet 3 VARIABLE MEMORY V TRAN LATORS V REGISTER Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY 112 Sheets- Sheet.

Filed Sept. 15, 1961 oooom I mtza ooovw Fzz: oooom m :23 000E N :2: 0009 :2:

SHNI'I EIAIHO X 5% 3:5 $2: NEE r ER- E2:

m oI Aug. 9, 1966 A. w. CHENEY ET 3,266,020

COMPUTER WITH ERROR RECOVERY 113 Sheets-Sheet 6 CLEAR SET CLEAR FIG.4

Aug. 9, 1966 Filed Sept. 13, 1961 A. W. CHENEY ET AL COMPUTER WITH ERROR RECOVERY 112 Sheets-Sheet '7 FIG. 5 a

P REGISTER Aug. 9, 1966 Filed Sept. 13, 1961 A. W. CHENEY ET AL COMPUTER WITH ERROR RECOVERY 113 Sheets-Sheet 8 (9) bOd 13s (L) \rOd 135 Eu H (9) 170d am {0d (1) 20d 13s H 29g 0 (9) QOd an J (1) 20d 13s 20d L ooovo=d 1353a u. i (9) 20d am -0 N Ed 2 FIG. 5b

P REGISTER Aug. 9, 1966 A. w. CHENEY ET 3,265,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 112 Sheets-Sheet 9 6 HlSNI lVHdHti NEW iON ZI HlSNI lVHdHH BdW Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 15, 1961 112 Sheets-Sheet 10 FIG. 6

P* REGISTER Aug. 9, 1966 A. w. CHENEY ET AL 3,256,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 112 Sheets-Sheet 11 HG. 70 ADDRESS COUNTER 9, 6 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 112 Sheets-Sheet 12 Q) I 9 60 IL r1 o 60d135 I Z 60 1 s [L 2 F 1 FIG. 7b ADDRESS COUNTER Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY 113 Sheets-Sheet 13 Filed Sept. 13, 1961 Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 15, 1961 112 S eets-Sheet 14 FIG. 80

UO-S

REGISTER Aug. 9, 1966 A w. CHENEY ET 3,256,020

COMPUTER WITH ERROR RECOVERY 112 Sheets-Sheet 15 Filed Sept. 15. 1961 Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Aug. 9, 1966 A. w. CHENEY ET 3,266,020

COMPUTER WITH ERROR RECOVERY 112 Sheets-Sheet 18 Filed Sept. 13, 1961 Aug. 9, 1966 V A. w. CHENEY E 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 112 Sheets-Sheet 19 d9 Qdl 133138 2 snas 103138 5 Q\ o z 9 "R g'\ (d3) QdOlS mus 2\ ---1 z dOlS mus I bl fl M u. MU L D m Z 8 m c N I 2 LI- :3

Aug. 9, 1966 A. w. CHENEY ET AL 3,266,020

COMPUTER WITH ERROR RECOVERY Filed Sept. 13, 1961 112 Sheets-$heet 20 

1. A SYSTEM COMPRISING IN COMBINATION: AN EXTERNAL UNIT; A COMPUTER RESPONSIVE TO SIGNALS FROM SAID EXTERNAL UNIT FOR EXECUTING A PROGRAM IN RESPONSE TO EACH SIGNAL; AND MEANS FOR INDICATING THAT SAID COMPUTER IS INCAPABLE OF FUNCTIONING PROPERLY AS A PART OF SAID SYSTEM, SAID INDICATING MEANS COMPRISING A COUNTER, MEANS FOR ADDING A VALUE TO SAID COUNTER WHEN AN ERROR OCCURS IN SID COMPUTER, MEANS FOR SUBTRACTING A VALUE FROM SAID COUNTER EACH TIME SAID COMPUTER EXECUTES A PROGRAM IN RESPONSE TO A SIGNAL FROM SAID EXTERNAL UNIT, AND MEANS RESPONSIVE TO A PREDETERMINED COUNT IN SAID COUNTER FOR INDICATING THAT IS COMPUTER IS GENERATING ERRORS AT A RATE GREATER THAN THE PERMISSIBLE RATE OF OCCURRENCE OF ERRORS OF SAID SYSTEM. 